0 used as a warning -- attention
Beware of the dog! Attention, chien méchant !
1 (usually with of) to be careful (of) -- (faire) attention (à)
Beware of the dog.
2 to be careful -- prendre garde
He told them to beware.
Nevertheless, we need to beware of this concept being hijacked and used with overweening ideological verbosity, encroaching on new areas and being intoned in support of questionable technical proposals.
If though, on the one hand, we can speak in terms of progress, we should beware, at the same time, of ending up going backwards.
